Experimental

Examples of Experimental in the following topics:

• Experimental Epidemiology

  • Experimental epidemiology uses an experimental model to confirm a causal relationship suggested by observational studies.
  • Epidemiologists employ a range of study designs from the observational to experimental and they are generally categorized as descriptive, analytic (aiming to further examine known associations or hypothesized relationships), and experimental (a term often equated with clinical or community trials of treatments and other interventions).
  • Controversially, in experimental studies, the epidemiologist is the one in control of all of the factors entering a certain case study.
  • Experimental epidemiology tests a hypothesis about a disease or disease treatment in a group of people.
  • Summarize the purpose of experimental epidemiology and the three case types: randomized control, field and community trial

• The Science of Epidemiology

  • Epidemiologists employ a range of study designs from the observational to experimental.
  • Its study designs are generally categorized as descriptive, analytical (aiming to further examine known associations or hypothesized relationships), and experimental (a term often equated with clinical or community trials of treatments and other interventions).
  • Controversially, in experimental studies, the epidemiologist is the one in control of all of the factors relating to the particular case study.
  • Experimental epidemiology contains three case types: randomized control trials (often used for new medicine or drug testing), field trials (conducted on those at a high risk of conducting a disease), and community trials (research on social originating diseases).

• High Pressure

  • Experiments into the effects of pressure on microorganisms were first recorded in the late nineteenth century.
  • Experiments were also performed with anthrax, typhoid, and tuberculosis, which was a potential health risk for the researchers.
  • Indeed, before the process was improved, one employee of the Experimental Station became ill with typhoid fever.

• Analytical Epidemiology

  • Epidemiologists employ a range of study designs from observational to experimental and generally categorized as descriptive, analytic (aiming to further examine known associations or hypothesized relationships), and experimental (a term often equated with clinical or community trials of treatments and other interventions).

• Selection

  • Scientists who do experimental genetics employ artificial selection experiments that permit the survival of organisms with user-defined phenotypes.
  • Molecular cloning is a set of experimental methods in molecular biology that are used to assemble recombinant DNA molecules and to direct their replication within host organisms.
  • Strictly speaking, recombinant DNA refers to DNA molecules, while molecular cloning refers to the experimental methods used to assemble them.
  • Experimental scientists deal with this issue through a step of artificial genetic selection , in which cells that have not taken up DNA are selectively killed, and only those cells that can actively replicate DNA containing the selectable marker gene encoded by the vector are able to survive.

• Putting Foreign DNA into Cells

  • The methods used to get DNA into cells are varied, and the name applied to this step in the molecular cloning process will often depend upon the experimental method that is chosen (e.g., transformation, transduction, transfection, electroporation).
  • Experimental scientists deal with this issue through a step of artificial genetic selection, in which cells that have not taken up DNA are selectively killed, and only those cells that can actively replicate DNA containing the selectable marker gene encoded by the vector are able to survive.

• Mapping Protein-Protein Interactions

  • This experimental approach measures direct physical interaction between proteins and is called a binary method .
  • This experimental approach measures physical interactions between groups of proteins without distinguishing whether they are direct or indirect and is termed co-complex method.

• Pure Culture

  • The experimenter would inoculate liquid broth with bacteria and let it grow overnight (they may use a shaker for uniform growth).

• Elements of Life

• Koch's Postulates

  • The microorganism must be reisolated from the inoculated, diseased experimental host and identified as being identical to the original specific causative agent.